The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2008
Filed:
Jan. 28, 2005
Hans-eberhard Kroebel, München, DE;
Martin Simon, Otterfing, DE;
Hans-Eberhard Kroebel, München, DE;
Martin Simon, Otterfing, DE;
Infineon Technologies AG, Munich, DE;
Abstract
The invention specifies a transmission arrangement, particularly for mobile radio, which has a homodyne design and in which a feedback path is routed from the input or from the output of the vector modulator () via a switch () and an A/D converter () back to the digital signal processing () in baseband (). As a result, it is a particularly simple matter to detect offsets and amplitude mismatches and to correct them without difficulty in a digital signal processor (). This allows both significantly improved carrier frequency suppression and significantly improved sideband suppression to be achieved with little complexity. The mobile radio transmitter described is particularly suitable for use in modern mobile radio systems such as GSM EDGE and UMTS.